If you ever plan to weld aluminum , you’ll need a machine that can accept a spool gun, as aluminum wire is too soft to be pushed through a standard 10-foot lead. Final Verdict
These are portable and convenient. However, they are generally limited to welding 1/8" to 3/16" steel. If you try to weld a thick trailer frame, you’ll lack the penetration needed for a safe joint. what mig welder to buy
The "Red" machines. Equivalent to Miller in quality, often found in professional fabrication shops and trade schools. If you ever plan to weld aluminum ,
These machines are the heavy hitters. They can handle 1/2" plate and offer a much higher duty cycle (how long you can weld before the machine needs to cool down). If you try to weld a thick trailer
Produces beautiful, clean welds with almost no cleanup. It’s essential for thin sheet metal and auto body work.
Some cheap welders have "tapped" settings (1, 2, 3, 4). Avoid these. You want "infinite" dials so you can fine-tune the heat exactly where you need it.